SJA1000/N1 NXP Semiconductors, SJA1000/N1 Datasheet - Page 15

• Manufacturer Part Number: SJA1000/N1
• Manufacturer: NXP Semiconductors

Specifications of SJA1000/N1

• Data Rate: 1000Kbps
• Number Of Transceivers: 1
• Power Down Mode: Sleep
• Standard Supported: CAN 2.0B
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Package Type: PDIP
• Supply Current: 15mA
• Operating Temperature (max): 125C
• Operating Temperature (min): -40C
• Operating Temperature Classification: Automotive
• Mounting: Through Hole
• Pin Count: 28
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
6.3.5
The content of the status register reflects the status of the SJA1000. The status register appears to the microcontroller
as a read only memory.
Table 5 Bit interpretation of the status register (SR); CAN address 2
2000 Jan 04
SR.7
SR.6
SR.5
SR.4
SR.3
SR.2
SR.1
SR.0
Stand-alone CAN controller
BIT
S
TATUS
BS
ES
TS
RS
TCS
TBS
DOS
RBS
SYMBOL
R
EGISTER
Bus Status; note 1
Error Status; note 2
Transmit Status; note 3
Receive Status; note 3
Transmission Complete
Status; note 4
Transmit Buffer Status;
note 5
Data Overrun Status;
note 6
Receive Buffer Status;
note 7
(SR)
NAME
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
VALUE
15
bus-off; the SJA1000 is not involved in bus
activities
bus-on; the SJA1000 is involved in bus activities
error; at least one of the error counters has
reached or exceeded the CPU warning limit
ok; both error counters are below the warning limit
transmit; the SJA1000 is transmitting a message
idle; no transmit message is in progress
receive; the SJA1000 is receiving a message
idle; no receive message is in progress
complete; the last requested transmission has
been successfully completed
incomplete; the previously requested transmission
is not yet completed
released; the CPU may write a message into the
transmit buffer
locked; the CPU cannot access the transmit
buffer; a message is waiting for transmission or is
already in process
overrun; a message was lost because there was
not enough space for that message in the RXFIFO
absent; no data overrun has occurred since the
last clear data overrun command was given
full; one or more messages are available in the
RXFIFO
empty; no message is available
FUNCTION
Product specification
SJA1000